CN106037627A - Full-automatic visual acuity examination method and device for infants - Google Patents

Full-automatic visual acuity examination method and device for infants Download PDF

Info

Publication number
CN106037627A
CN106037627A CN201610339335.5A CN201610339335A CN106037627A CN 106037627 A CN106037627 A CN 106037627A CN 201610339335 A CN201610339335 A CN 201610339335A CN 106037627 A CN106037627 A CN 106037627A
Authority
CN
China
Prior art keywords
image
vision
display module
pupil
infant
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201610339335.5A
Other languages
Chinese (zh)
Other versions
CN106037627B (en
Inventor
杜煜
詹培忠
汪江林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Green Technology Co Ltd
Original Assignee
Shanghai Green Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shanghai Green Technology Co Ltd filed Critical Shanghai Green Technology Co Ltd
Priority to CN201610339335.5A priority Critical patent/CN106037627B/en
Publication of CN106037627A publication Critical patent/CN106037627A/en
Application granted granted Critical
Publication of CN106037627B publication Critical patent/CN106037627B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B3/00Apparatus for testing the eyes; Instruments for examining the eyes
    • A61B3/02Subjective types, i.e. testing apparatus requiring the active assistance of the patient
    • A61B3/028Subjective types, i.e. testing apparatus requiring the active assistance of the patient for testing visual acuity; for determination of refraction, e.g. phoropters

Abstract

The invention provides a full-automatic visual acuity examination method and an examination device for infants; a stimulus graph can be automatically displayed, and the seeing position, direction and time of eyes of the infant can be automatically recorded and calculated; and meanwhile, a test result can be obtained upon automatic analysis. The full-automatic visual acuity examination device for the infants comprises an eyeball tracking module, a control module, a display module and a visual acuity examination instrument host, wherein the eyeball tracking module and the display module are connected to the visual acuity examination instrument host; the eyeball tracking module is used for locating the seeing position of the human eyes; the display module is used for displaying a pattern for examination; and by virtue of the control module, data communication among the visual acuity examination host, the display module and the eyeball tracking module is achieved.

Description

A kind of full-automatic eyesight exam method of infant and device
Technical field
The present invention relates to a kind of eyesight exam method and device, the method for the full-automatic examination of visual acuity of a kind of infant And device.
Background technology
Vision i.e. Snazzi degree, the main visual function reflecting macular area.Examination of visual acuity is for the early discovery of ophthalmic diseases, early Phase treatment has very important meaning.The growth course of human vision is: the 4th week (1) period of pregnancy, and fetus vision is formed;(2) new Raw youngster: vision of being born in 1 week is 0.01~0.02, and big baby's vision was 0.05~0.1 in one month, birth to 3 months it Between, eyeball can't fixation, and can be attracted by face, bright or motion object;(3) 3 months: the vision of most of childs Can " following " moves very smoothly object, also sight line can be fixed on object.Color, the object of motion can attract children Youngster;(4) 3~6 months: retina is the most well grown, child can be remote by closely seeing then near by far seeing, the trickle position of object Also can see;(5) 6 months: the 2/3 of the existing adult of eyes is big, sees that object is that eyes are seen simultaneously, thus obtains normal " stereopsis vision ";(6) 1 years old: vision general 0.1~0.3;(7) twenty-twenty visions of 3 years old are about 0.6~0.8;(8) 4 years old normal When vision is about 0.8~1.0.3 years old;(9) 5~7 years old: if twenty-twenty vision is 1.0. is unable to reach twenty-twenty vision, then need to find former Cause, if being found to have amblyopia, by positive treatment, the result that still can obtain;(10) 8~9 years old: visual acuity is the completeest Becoming, if being the most just found to have amblyopia or not having stereoscopic vision, then the chance corrected is the most pessimistic.
But for young infant, the infant within especially 3 years old, due to by age, intelligence, understanding energy The impact of the many factors such as power, ability to express, mental status and environmental condition, the inspection of vision is extremely difficult.According to baby The developmental state of child, existing have for infant eyesight inspection method: (1) eye and the pursuit movement (neonate) of head: see Examine baby's fixation and follow the ability of target;(2) reflection (3 months) is detested: judge that big monthly age infant is with or without amblyopia or eyes Difference regards;(3) optokinetic nystagmus (OKN, 6 months): will the rotating examination of black-white grating striped of different width Drum, repeat before infant forward and backwards rotation, produce OKN, gradually bulging for test bar grid narrowed, until tested baby Fillet grid before not producing OKN are the vision of baby;(4) selectivity viewing inspection technique (1 years old): i.e. utilize baby to black The principle that white striated pattern is interested than uniform grey figure, two kinds of figures of display are watched by infant simultaneously, change striped Width is till baby is reluctant to continue to observe, and the width of striped represents the PL vision of baby;(5) test chart for children inspection technique (2 ~3 years old): the figure using child to be familiar with and like, design by visual angle size;(6) visual evoked potential inspection technique, i.e. exists Baby head sticks electrode, repeats upset with grid or bar gate figure and allows infant watch, by the superposed average of up to a hundred times After obtain the visual evoked potential waveform of brain wave.
But above method there is the problem that method (1)~(5) are required for special trained medical worker and enter Row manual operation, and the success or not checked needs the cooperation of testee, and with the less effective of child, it checks that result is high Degree relies on skill and the experience of examiner, needs eye motion direction and the position of subjective judgment infant, and operation is complicated, required Time is long, and can not get accurate result;The shortcoming of method (6) is that test instrunment patch electrode needs and baby carries out skin and connects Touching, patch electrode and secondary repetitive stimulation up to a hundred are also the longest, are difficult to promote clinically.
And infantile period is the critical period that vision is ripe, also it is to produce the period that developmental character visual problem is most sensitive, as Fruit is provided that the method or apparatus of a kind of complete-automatic check infant eyesight, can be used for the vision of clinical measures baby, this for Examination of visual acuity and treatment field also have great significance.
Summary of the invention
It is an object of the invention to be achieved through the following technical solutions.
A technical problem to be solved by this invention is intended to offer one can be with complete-automatic check infant or cognitive energy The method of experimenter's vision that power is inadequate, vision is ripe early stage or the critical period weighs its visual acuity situation.
Another technical problem to be solved by this invention is to provide one and can actual in clinic apply, it is simple to operation The full-automatic equipment for examining vision of infant.
In order to solve above-mentioned two technical problem, the invention provides a kind of full-automatic eyesight exam method of infant and dress Put, can automatically show stimulation figure, automatically record and calculate the seen position of infant eyes, direction and time, and can automatically divide Analysis obtains test result, and need not and infant generation Body contact, efficiently solves tradition infant eyesight inspection at present What checking method existed wastes time and energy and the accurate not problem of result.
The composition structure of the full-automatic equipment for examining vision of infant of the present invention is: by eyeball tracking module (100), Control module (200), display module (300) and vision tester main frame (400) composition;Described eyeball tracking module, display mould Block is connected with vision tester main frame respectively;Described eyeball tracking module is used for positioning the seen position of human eye;Described display module For showing inspection pattern;Described control module realizes between vision tester main frame, display module and eyeball tracking module Data communication.
Described eyeball tracking module includes thermal camera (102), signal processing unit (103) and infrared spotlight (101), described quantity of light source is at least one, and described thermal camera is continuously shot the image comprising experimenter's eye, and will Image information passes to control module.
The image of described eyeball tracking module collection is identified by described control module automatically, extracts eyes image, and Mutual alignment relation according to pupil center and the center of corneal reflection judges that the position in the display module of eye gaze is sat Mark, and the position coordinates described eyeball tracking module captured is compared with the position coordinates on described display module, according to Inspection result is sent to described vision tester main frame by coordinate comparing result.
The inspection method that the full-automatic equipment for examining vision of infant that the present invention relates to is used be:
(1) showing test pattern in display module, experimenter the most just watches these patterns;
(2) eyeball tracking module is continuously shot the image comprising experimenter's eye, and passes to image information control mould Block;
(3) control module image automatic identification to photographing, according to pupil center and the phase at the center of corneal reflection Position relationship records and calculates position, direction and the time that subject eye is seen automatically mutually;
(4) the seen position of eyes automatically identified by image procossing is carried out with the picture position of actual displayed in display module Comparison, it is judged that the position seen is the most correct;
(5) to same pattern, repeatedly, image occurs at random for repeated execution of steps (1)~(4);
(6) add up the accuracy of the seen position of eyes under this image, compare with the threshold value of the accuracy set, work as institute When stating the accuracy of image less than threshold value, turn down image difficulty, and continue executing with step (1)~(5), until this pattern is correct Rate reaches to set threshold value, now determines the vision of this experimenter;When the accuracy of image described under described pattern is greater than or equal to During threshold value, then improve image difficulty, and continue executing with step (1)~(5), until determining what the vision of this experimenter can reach Till peak;
(7) vision of experimenter is determined according to the result in step (6).
In above-mentioned steps (3), the mutual alignment relation according to pupil center and the center of corneal reflection judges that eyes are seen Position, concrete grammar is:
A) one is arranged higher than the average gray of pupil less than surrounding iris, the gray scale threshold of the average gray of skin area Value, is possible eye areas less than the zone marker of described gray threshold;
B) area threshold of one interference excluding hair and the black object such as eyebrow, eyelash is set, thus extracts To the region at eye pupil place, if monocular vision test then obtains single oculopupillary image, if binocular vision is surveyed Examination then obtains the image of pupil of both eyes;
C) experimenter at least watch display module right figure midpoint, display module central authorities, on the left of display module in figure Point, the pupil of record diverse location and the image of pupil neighboring area;
D) utilize feature extraction that pupil region is lower than peripheral region gray value to the edge of pupil region, and calculate Its center A;
E) utilize feature extraction that cornea retroreflective regions is substantially high than peripheral region gray value to the limit of N number of corneal reflection Edge, and calculate center B1 to the BN of each corneal reflection respectively, the quantity of corneal reflection N is whole more than or equal to one Number;
F) the center C of the formed figure of line of B1 to BN is calculated, when eyes remove to see the diverse location of display module Time, the center C's of the position A of pupil center and center the formed figure of B1 to BN line of each corneal reflection Position relatively changes;
G) using C point as coordinate origin, in units of pixel, pupil center's point A in each image is calculated respectively relative In the coordinate of C, seen for eyes position is set up corresponding with the pupil cornea relative coordinate of eyes imaging in near-infrared video camera Relation.
When applying the full-automatic eyesight exam method of infant of the present invention, in display module, the image of display is permissible For:
(1) side is black and white strip grid map, and opposite side is inhomogeneous intensity figure, and described image difficulty is black and white strip grid Density, the fringe density of described grid map reflects its vision;
The ball of (2) at the uniform velocity back and forth movements, record experimenter follows the vision track of the ball of back and forth movement, image difficulty For the speed of the ball of back and forth movement, the speed of the ball of described back and forth movement reflects its vision;
(3) black-white grating stripeds rotating examination drum, repeat before experimenter forward and backwards rotation, produce Optokinetic nystagmus, described image difficulty is the width degree of black-white grating striped, and experimenter can be caused nystagmic Stria has reacted its vision;
(4) at animation or the figure of diverse location random display, record experimenter observes the time of described image, image Difficulty is brightness or the size of image, and the time that described experimenter observes reflects its vision.
As seen from the above technical solution provided by the invention, the present invention is a kind of full-automatic examination of visual acuity side of infant Method and device, can automatically show stimulating image, automatically record and calculate the seen position of infant eyes, direction and time, and can Automatically analyze and obtain test result, need not with infant generation Body contact in the case of with image attracting babies actively Viewing, efficiently solve that at present tradition infant eyesight inspection method exists waste time and energy and result is asked the most accurately Topic, uses objective data to obtain comprehensive assay, improves the accuracy rate of inspection, and provided by the present invention complete from Dynamic infant visual acuity tester can use through simple training, less demanding to operator.
The full-automatic eyesight exam method of infant provided by the present invention and device not only be typically used in infant Examination of visual acuity, and can also be used for other people, such as mentally handicapped businessman group or the examination of visual acuity of deaf mute.
Accompanying drawing explanation
By reading the detailed description of hereafter preferred implementation, various other advantage and benefit common for this area Technical staff will be clear from understanding.Accompanying drawing is only used for illustrating the purpose of preferred implementation, and is not considered as the present invention Restriction.And in whole accompanying drawing, it is denoted by the same reference numerals identical parts.In the accompanying drawings:
The structural representation of the full-automatic equipment for examining vision of Fig. 1 infant.
The group selection viewing figure that Fig. 2 display module shows, side is black and white strip grid map, and opposite side is uniform ash Degree figure.
Pupil during Fig. 3 display module right figure midpoint and the image of pupil neighboring area.
Pupil during Fig. 4 display module central graphical midpoint and the image of pupil neighboring area.
Pupil during figure midpoint and the image of pupil neighboring area on the left of Fig. 5 display module.
The relative position view at pupil center and corneal reflection center during Fig. 6 display module left side pattern.
Detailed description of the invention
It is more fully described the illustrative embodiments of the disclosure below with reference to accompanying drawings.Although accompanying drawing shows these public affairs The illustrative embodiments opened, it being understood, however, that may be realized in various forms the disclosure and the reality that should not illustrated here The mode of executing is limited.On the contrary, it is provided that these embodiments are able to be best understood from the disclosure, and can be by these public affairs What the scope opened was complete conveys to those skilled in the art.
According to the embodiment of the present invention, propose a kind of full-automatic eyesight exam method of infant and device, can automatically show Show stimulation figure, automatically record and calculate the seen position of infant eyes, direction and time, and can automatically analyze and obtain test and tie Really, and need not and infant generation Body contact, efficiently solve what tradition infant eyesight inspection method at present existed Waste time and energy and the accurate not problem of result.
The composition structure of the full-automatic equipment for examining vision of infant of the present invention is: by eyeball tracking module (100), Control module (200), display module (300) and vision tester main frame (400) composition;Described eyeball tracking module (100), aobvious Show that module (200) is connected with vision tester main frame (400) respectively;Described eyeball tracking module (100) is used for positioning human eye institute See position;Described display module (200) is used for showing inspection pattern;Described control module (200) realizes vision tester master Data communication between machine (400), display module (300) and eyeball tracking module (100).
Described eyeball tracking module includes thermal camera (102), signal processing unit (103) and infrared spotlight (101), described infrared spotlight be two wavelength be the near-infrared LED light source of 850nm, described thermal camera is continuously shot bag Containing the image of experimenter's eye, and image information is passed to control module.
The image of described eyeball tracking module collection is identified by described control module automatically, extracts eyes image, and Mutual alignment relation according to pupil center and the center of corneal reflection judges that the position in the display module of eye gaze is sat Mark, and the position coordinates described eyeball tracking module captured is compared with the position coordinates on described display module, according to Inspection result is sent to described vision tester main frame by coordinate comparing result.
According to another embodiment of the present invention, the full-automatic equipment for examining vision of infant that the present invention relates to is used Inspection method be:
(1) showing test pattern in display module, experimenter the most just watches these patterns;
(2) eyeball tracking module is continuously shot the image comprising experimenter's eye, and passes to image information control mould Block;
(3) control module image automatic identification to photographing, according to pupil center and the phase at the center of corneal reflection Position relationship records and calculates position, direction and the time that subject eye is seen automatically mutually;
(4) the seen position of eyes automatically identified by image procossing is carried out with the picture position of actual displayed in display module Comparison, it is judged that the position seen is the most correct;
(5) to same pattern, repeatedly, image occurs at random for repeated execution of steps (1)~(4);
(6) add up the accuracy of the seen position of eyes under this image, compare with the threshold value of the accuracy set, work as institute When stating the accuracy of image less than threshold value, turn down image difficulty, and continue executing with step (1)~(5), until this pattern is correct Rate reaches to set threshold value, now determines the vision of this experimenter;When the accuracy of image described under described pattern is greater than or equal to During threshold value, then improve image difficulty, and continue executing with step (1)~(5), until determining what the vision of this experimenter can reach Till peak;
(7) vision of experimenter is determined according to the result in step (6).
In above-mentioned steps (3), the mutual alignment relation according to pupil center and the center of corneal reflection judges that eyes are seen Position, concrete grammar is:
A) one is arranged higher than the average gray of pupil less than surrounding iris, the gray scale threshold of the average gray of skin area Value, is possible eye areas less than the zone marker of described gray threshold;
B) area threshold of one interference excluding hair and the black object such as eyebrow, eyelash is set, thus extracts To the region at eye pupil place, if monocular vision test then obtains single oculopupillary image, if binocular vision is surveyed Examination then obtains the image of pupil of both eyes;
C) experimenter at least watch display module right figure midpoint, display module central authorities, on the left of display module in figure Point, the pupil of record diverse location and the image of pupil neighboring area;
D) utilize feature extraction that pupil region is lower than peripheral region gray value to the edge of pupil region, and calculate Its center A;
E) utilize feature extraction that cornea retroreflective regions is substantially high than peripheral region gray value to the limit of N number of corneal reflection Edge, and calculate center B1 to the BN of each corneal reflection respectively, the quantity of corneal reflection N is whole more than or equal to one Number;
F) the center C of the formed figure of line of B1 to BN is calculated, when eyes remove to see the diverse location of display module Time, the center C's of the position A of pupil center and center the formed figure of B1 to BN line of each corneal reflection Position relatively changes;
G) using C point as coordinate origin, in units of pixel, pupil center's point A in each image is calculated respectively relative In the coordinate of C, seen for eyes position is set up corresponding with the pupil cornea relative coordinate of eyes imaging in near-infrared video camera Relation.
When applying the full-automatic eyesight exam method of infant of the present invention, in display module, the image of display is permissible For:
(1) side is black and white strip grid map, and opposite side is inhomogeneous intensity figure, and described image difficulty is black and white strip grid Density, the fringe density of described grid map reflects its vision;
The ball of (2) at the uniform velocity back and forth movements, record experimenter follows the vision track of the ball of back and forth movement, image difficulty For the speed of the ball of back and forth movement, the speed of the ball of described back and forth movement reflects its vision;
(3) black-white grating stripeds rotating examination drum, repeat before experimenter forward and backwards rotation, produce Optokinetic nystagmus, described image difficulty is the width degree of black-white grating striped, and experimenter can be caused nystagmic Stria has reacted its vision;
(4) at animation or the figure of diverse location random display, record experimenter observes the time of described image, image Difficulty is brightness or the size of image, and the time that described experimenter observes reflects its vision.
As a example by the black and white strip grid of selectivity viewing inspection technique, introduce infant involved in the present invention automatically regard The use step of power inspection method and device:
(1) computer shows a group selection viewing graphic pattern such as accompanying drawing 2 over the display, and the side of figure is black and white strip grid Trrellis diagram, opposite side is inhomogeneous intensity figure, and infant can be differentiated the fringe density of grid map and reflect its vision.Grid map and gray scale The relative position of figure occurs at random.Infant is allowed the most just to watch these patterns.
(2) being positioned at the near-infrared photographic head below display, two lateral extent 15 centimeters respectively place the reddest of a 850nm Outer LED light source.While display examination of visual acuity figure, video camera is continuously shot the image comprising infant eye, and will figure As being acquired by computer by data wire.
(3) image that photographic head is photographed by computer identifies automatically, extracts the image of eyes, and according to pupil The mutual alignment relation at the center of center, hole and corneal reflection judges that the position that eyes are seen, detailed process are:
A) when 850nm near infrared light imaging, pupil gray value is significantly low than surrounding iris, skin area, arranges one Gray scale judgment threshold, this gray threshold is higher than the average gray of pupil and is less than the average ash of surrounding iris, skin area Degree, is possible eye areas less than the zone marker of this gray threshold.
B) one area threshold is set and excludes hair and the interference of the black object such as eyebrow, eyelash, thus extract The region at eye pupil place, if monocular vision test obtains single oculopupillary image, if binocular vision is tested Image to pupil of both eyes.
C) as a example by simple eye left vision is tested, accompanying drawing 3~5 is that eyes see display right figure midpoint, display respectively Pupil during figure midpoint and the image of pupil neighboring area on the left of device central authorities, display.
D) utilize feature extraction that pupil region is lower than peripheral region gray value to the edge of pupil region, and calculate Its center A.
E) utilize the feature extraction that cornea retroreflective regions is substantially high than peripheral region gray value to two corneal reflection Edge, and calculate its center B1 and B2 respectively.
F) calculating the line point midway C of B1 and B2, cornea eye surface is a sphere, and when eyes move, cornea is anti- The translational speed of luminous point is slower than the translational speed of pupil center, therefore when eyes remove the diverse location seeing on display screen, and pupil The position A at center will change with the relative position of the midpoint C of corneal reflection line.
G) using C point as coordinate origin, it is designated as (0,0), in units of pixel, respectively in calculating each image in pupil The heart point A coordinate relative to C, as a example by accompanying drawing 6, if see screen midpoint, pupil center A point relative to the coordinate of C point be (X0, Y0), then when seeing the screen left side, the X-coordinate of A point can be more than X0;When seeing on the right of screen, the X-coordinate of A point can be less than X0; When seeing above screen, the Y coordinate of A point can be more than Y0, and when seeing below screen, the Y coordinate of A point can be less than Y0.According to this Rule, can set up corresponding closing by seen for eyes position with the pupil cornea relative coordinate of eyes imaging in near-infrared video camera System.
(4) graph position of the seen position of eyes automatically identified by image procossing and computer actual displayed compares Right, it is judged that the position seen is the most correct.
(5) same cell densities pattern is repeatedly tested, and grid graph right position occurs at random, and opposite side is gray scale Figure.
(6) accuracy of this seen position of cell densities figure eyes is added up, as reached certain accuracy threshold value, such as More than 70%, then it is assumed that this cell densities normal visual acuity.Next round can random display more high density grid graph, corresponding higher Vision.As do not reached accuracy threshold value, then it is assumed that this cell densities vision is abnormal, can random display less dense grid map Shape, corresponding lower vision.
(7) the high density grid can correctly distinguished according to infant, then it is assumed that be the vision value of this infant.
The above, the only present invention preferably detailed description of the invention, but protection scope of the present invention is not limited thereto, Any those familiar with the art in the technical scope that the invention discloses, the change that can readily occur in or replacement, All should contain within protection scope of the present invention.Therefore, protection scope of the present invention answers the described protection model with claim Enclose and be as the criterion.

Claims (9)

1. the full-automatic equipment for examining vision of infant, it is characterised in that: described infant full-automatic equipment for examining vision bag Include: eyeball tracking module, control module, display module and vision tester main frame;Described eyeball tracking module, display module divide It is not connected with vision tester main frame;Described eyeball tracking module is used for positioning the seen position of human eye;Described display module is used for Display inspection pattern;Described control module realizes the number between vision tester main frame, display module and eyeball tracking module According to communication.
2. the full-automatic equipment for examining vision of infant as claimed in claim 1, it is characterised in that: described eyeball tracking module bag Including thermal camera, signal processing unit and infrared light supply, described quantity of light source is at least one, and described thermal camera is continuous Shooting comprises the image of experimenter's eye, and image information is passed to control module.
3. the full-automatic equipment for examining vision of infant as claimed in claim 1, it is characterised in that: described control module is to described The image of eyeball tracking module collection identifies automatically, extracts eyes image, and according to pupil center and corneal reflection The mutual alignment relation at center judges the position coordinates in the display module of eye gaze, and described eyeball tracking module is caught To position coordinates compared with the position coordinates on described display module, according to coordinate comparing result, inspection result is sent to Described vision tester main frame.
4. the full-automatic eyesight exam method of infant, uses the infant as described in any one in claims 1 to 3 complete Automatically equipment for examining vision, it is characterised in that described method includes step:
(1) showing test pattern in display module, experimenter the most just watches these patterns;
(2) eyeball tracking module is continuously shot the image comprising experimenter's eye, and image information is passed to control module;
(3) control module image automatic identification to photographing, according to the mutual position at the center of pupil center and corneal reflection Relation of putting records and calculates position, direction and the time that subject eye is seen automatically;
(4) the seen position of eyes automatically identified by image procossing is compared with the picture position of actual displayed in display module Right, it is judged that the position seen is the most correct;
(5) to same pattern, repeatedly, image occurs at random for repeated execution of steps (1)~(4);
(6) add up the accuracy of the seen position of eyes under this image, compare, when described figure with the threshold value of the accuracy set When the accuracy of picture is less than threshold value, turns down image difficulty, and continue executing with step (1)~(5), until the accuracy of this pattern reaches To setting threshold value, now determine the vision of this experimenter;When the accuracy of image described under described pattern is greater than or equal to threshold value Time, then improve image difficulty, and continue executing with step (1)~(5), until it is the highest to determine that the vision of this experimenter can reach Till value;
(7) vision of experimenter is determined according to the result in step (6).
5. the full-automatic eyesight exam method of infant as claimed in claim 4, it is characterised in that: basis in described step (3) The mutual alignment relation at the center of pupil center and corneal reflection records and calculates the position that subject eye is seen automatically, tool Body method is:
A) one is arranged higher than the average gray of pupil less than surrounding iris, the gray threshold of the average gray of skin area, It is possible eye areas less than the zone marker of described gray threshold;
B) area threshold of one interference excluding hair and the black object such as eyebrow, eyelash is set, thus extracts eye The region at eyeball pupil place, if monocular vision test then obtains single oculopupillary image, if binocular vision is tested then Obtain the image of pupil of both eyes;
C) experimenter at least watches figure midpoint on the left of display module right figure midpoint, display module central authorities, display module, note The pupil of record diverse location and the image of pupil neighboring area;
D) utilize feature extraction that pupil region is lower than peripheral region gray value to the edge of pupil region, and calculate wherein Heart position A;
E) utilize feature extraction that cornea retroreflective regions is substantially high than peripheral region gray value to the edge of N number of corneal reflection, And calculating center B1 to the BN of each corneal reflection respectively, the quantity of corneal reflection N is the integer more than or equal to;
F) the center C of the formed figure of line of B1 to BN, when eyes remove the diverse location seeing display module, pupil are calculated The position A at center, hole is relative with the center C's of center the formed figure of B1 to BN line of each corneal reflection Position changes;
G) using C point as coordinate origin, in units of pixel, pupil center's point A is calculated in each image respectively relative to C's Coordinate, sets up corresponding relation by seen for eyes position and eyes pupil cornea relative coordinate of imaging in near-infrared video camera.
6. the full-automatic eyesight exam method of infant as claimed in claim 4, it is characterised in that: image shown by display module Being black and white strip grid map for side, opposite side is inhomogeneous intensity figure, and described image difficulty is the density of black and white strip grid, institute The fringe density stating grid map reflects its vision.
7. the full-automatic eyesight exam method of infant as claimed in claim 4, it is characterised in that: the image that display module shows Being the ball of an at the uniform velocity back and forth movement, record experimenter follows the vision track of the ball of back and forth movement, and image difficulty is for coming and going fortune The speed of dynamic ball, the speed of the ball of described back and forth movement reflects its vision.
8. the full-automatic eyesight exam method of infant as claimed in claim 4, it is characterised in that: the image that display module shows Be black-white grating striped rotating examination drum, repeat before experimenter forward and backwards rotation, produce apparent motion eye Ball trembles, and described image difficulty is the width degree of black-white grating striped, and the nystagmic stria of experimenter can be caused anti- Reflect its vision.
9. the full-automatic eyesight exam method of infant as claimed in claim 4, it is characterised in that: the image that display module shows For at the animation of diverse location random display or figure, record experimenter observes the time of described image, and image difficulty is figure The brightness of picture or size, described experimenter observes that the response time of described image reflects its vision.
CN201610339335.5A 2016-05-20 2016-05-20 A kind of full-automatic eyesight exam method of infant and device Active CN106037627B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610339335.5A CN106037627B (en) 2016-05-20 2016-05-20 A kind of full-automatic eyesight exam method of infant and device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610339335.5A CN106037627B (en) 2016-05-20 2016-05-20 A kind of full-automatic eyesight exam method of infant and device

Publications (2)

Publication Number Publication Date
CN106037627A true CN106037627A (en) 2016-10-26
CN106037627B CN106037627B (en) 2017-12-22

Family

ID=57176551

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610339335.5A Active CN106037627B (en) 2016-05-20 2016-05-20 A kind of full-automatic eyesight exam method of infant and device

Country Status (1)

Country Link
CN (1) CN106037627B (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106726388A (en) * 2017-01-04 2017-05-31 深圳市眼科医院 The trainer and its control method of a kind of extraocular muscle neural feedback muscle
CN107088145A (en) * 2017-04-25 2017-08-25 深圳职业技术学院 Visual function training method and system
CN108478399A (en) * 2018-02-01 2018-09-04 上海青研科技有限公司 A kind of amblyopia training instrument
CN108852280A (en) * 2018-07-16 2018-11-23 南京泰立瑞信息科技有限公司 A kind of Image Acquisition of vision drop and analysis method, system and equipment
CN109645953A (en) * 2019-01-25 2019-04-19 北京十维度科技有限公司 Vision-based detection and training method, device and VR equipment
CN110062598A (en) * 2016-11-28 2019-07-26 劳雷·皮舍罗-巴塞尔 Method and apparatus for eyes mid-stage assessment
CN110251071A (en) * 2019-06-21 2019-09-20 中山大学中山眼科中心 Children's vision appraisal procedure, system and computer storage medium
CN110522408A (en) * 2019-07-25 2019-12-03 北京爱诺斯科技有限公司 A kind of eye eyesight based on eccentricity cycles technology judges system and method
CN111294585A (en) * 2018-12-07 2020-06-16 深圳市冠旭电子股份有限公司 VR (virtual reality) equipment and focusing method and device thereof
CN112274103A (en) * 2020-09-11 2021-01-29 中山大学 Vision detection terminal and detection method
WO2021027235A1 (en) * 2019-08-09 2021-02-18 西安交通大学 Infant amblyopia electrocerebral objective detector
CN113208884A (en) * 2021-01-08 2021-08-06 上海青研科技有限公司 Visual detection and visual training equipment

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006030658A1 (en) * 2004-09-15 2006-03-23 Matsushita Electric Works, Ltd. Diopsimeter
CN102961117A (en) * 2012-11-06 2013-03-13 温州医学院 Strabismus diagnosis device based on mobile platform
CN105326471A (en) * 2014-07-31 2016-02-17 汉王科技股份有限公司 Children visual acuity testing device and testing method
CN205866721U (en) * 2016-05-20 2017-01-11 上海青研科技有限公司 Full -automatic visual acuity test device of infant

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006030658A1 (en) * 2004-09-15 2006-03-23 Matsushita Electric Works, Ltd. Diopsimeter
CN102961117A (en) * 2012-11-06 2013-03-13 温州医学院 Strabismus diagnosis device based on mobile platform
CN105326471A (en) * 2014-07-31 2016-02-17 汉王科技股份有限公司 Children visual acuity testing device and testing method
CN205866721U (en) * 2016-05-20 2017-01-11 上海青研科技有限公司 Full -automatic visual acuity test device of infant

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110062598A (en) * 2016-11-28 2019-07-26 劳雷·皮舍罗-巴塞尔 Method and apparatus for eyes mid-stage assessment
CN106726388A (en) * 2017-01-04 2017-05-31 深圳市眼科医院 The trainer and its control method of a kind of extraocular muscle neural feedback muscle
CN106726388B (en) * 2017-01-04 2019-02-05 深圳市眼科医院 A kind of training device and its control method of extraocular muscle neural feedback muscle
CN107088145A (en) * 2017-04-25 2017-08-25 深圳职业技术学院 Visual function training method and system
CN108478399A (en) * 2018-02-01 2018-09-04 上海青研科技有限公司 A kind of amblyopia training instrument
CN108478399B (en) * 2018-02-01 2020-07-24 上海青研科技有限公司 Amblyopia training instrument
CN108852280A (en) * 2018-07-16 2018-11-23 南京泰立瑞信息科技有限公司 A kind of Image Acquisition of vision drop and analysis method, system and equipment
CN111294585A (en) * 2018-12-07 2020-06-16 深圳市冠旭电子股份有限公司 VR (virtual reality) equipment and focusing method and device thereof
CN109645953A (en) * 2019-01-25 2019-04-19 北京十维度科技有限公司 Vision-based detection and training method, device and VR equipment
CN110251071A (en) * 2019-06-21 2019-09-20 中山大学中山眼科中心 Children's vision appraisal procedure, system and computer storage medium
CN110522408A (en) * 2019-07-25 2019-12-03 北京爱诺斯科技有限公司 A kind of eye eyesight based on eccentricity cycles technology judges system and method
WO2021027235A1 (en) * 2019-08-09 2021-02-18 西安交通大学 Infant amblyopia electrocerebral objective detector
CN112274103A (en) * 2020-09-11 2021-01-29 中山大学 Vision detection terminal and detection method
CN113208884A (en) * 2021-01-08 2021-08-06 上海青研科技有限公司 Visual detection and visual training equipment

Also Published As

Publication number Publication date
CN106037627B (en) 2017-12-22

Similar Documents

Publication Publication Date Title
CN106037627B (en) A kind of full-automatic eyesight exam method of infant and device
Trevarthen et al. I* hZftPH'-*/fi
US10610093B2 (en) Method and system for automatic eyesight diagnosis
Daw et al. Visual development
US20190150727A1 (en) Systems and methods for vision assessment
JP5498375B2 (en) Visual field inspection system, driving method for visual field inspection apparatus, computer program, information medium or computer readable medium, and processor
Putzar et al. Early visual deprivation affects the development of face recognition and of audio-visual speech perception
CN205866721U (en) Full -automatic visual acuity test device of infant
JP2018520820A (en) Method and system for inspecting visual aspects
RU2634682C1 (en) Portable device for visual functions examination
van Hof‐van Duin et al. Visual outcome at 5 years of newborn infants at risk of cerebral visual impairment
CN201929941U (en) Hemispheric stimulating vision function diagnosis and treatment instrument
CN109712710A (en) A kind of infant development obstacle intelligent evaluation method based on three-dimensional eye movement characteristics
Harris Sensation and perception
WO2021027235A1 (en) Infant amblyopia electrocerebral objective detector
US20110228219A1 (en) Ophthalmic simulator
CN109938727A (en) Non-human primate 3D vision stimulation test system and method
Gardiner The development of vision
Pratt et al. Scotoma Visibility and Reading Rate with Bilateral Central Scotomas
Bracco et al. BIE-PInCS: Brain injury evaluation with pupillometer based on infrared camera system
KR102344493B1 (en) A smart inspecting system, method and program for nystagmus using artificial intelligence
Quang et al. Mobile traumatic brain injury assessment system
CN113080844A (en) Visual detection and visual training device for optimizing retina area
Martins Brain Plasticity associated with Predictive Masking and Glaucoma
Ahtola Eye tracking Based Methods for Evaluation of Infants’ Visual Processing

Legal Events

Date Code Title Description
PB01 Publication
C06 Publication
SE01 Entry into force of request for substantive examination
C10 Entry into substantive examination
GR01 Patent grant
GR01 Patent grant